Pile-driver.



PATENTED NOV. 12, 1907.

F. BUBGE. PILE DRIVER.

APPLICATION FILED JULY 25. 1907.

THE NURRIS PETERS cc., WASHINGTON, D. c.

Fig.2 an edge view of the same. Fig. 3 a top or plan a new and useful Improvement'in Pile-Drivers; and I do hereby declare the following, when taken in com FRED BURGE, OF NEW HAVEN, CONNECTICUT.

FILE-DRIVER.

Specification of Letters Batent.

Patented Nov. 12, 1907.

Application filed July 25. 1907. Serial No. 385.4;88.

To all whom 'it may concern:

Be it known that I, FRED BURGE, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented nection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1 a face view of a portion of a pile driver hav ing a hammer constructed in accordance with my invention and shown in connection with a sheet-piling.

view of the device with the rope removed. Fig. 4 a side view of the hammer groove filling block detached. Fig. 5 a plan view of one of the lower plates, detached.

This invention relates to an improvement in pile drivers, and particularly to the hammers therefor.

In the usual construction of pile drivers the hammer is grooved on pposite sides to run in the framework, but frequently, and particularly in driving flat piles in shoring up ditches, it is desirable to employ a block or anvil upon the top of the pile, and it is particularly to hammersfor driving piles of this character that my invention more especially relates, the object of the invention being means for guiding the hammer and providing an, anvil therefor as will be hereinafter described and particularly recited in the claims.

As shown in the accompanying drawings the ham: mer 2 is of substantially usual construction formed with grooves 3 on opposite sides by which the hammer is usually guided in the frame. This hammer is formed with four holes 4, 5, 6 and 7 through which rods 8, 9, 10 and 11 extend and by which the hammer is guided. At'the top these rods extend through a plate 12 with which they are connected by nuts 13, and this plate has an eye 14 to which one end of the rope is attached, another end passing through a clearance hole 15 formed in the plate into engagement with the hammer 2. Free to move upon the rods 1 also arrange an anvil formed in its under face with a groove 17 adapting it to set over the top of a flat pile 18. In the upper face of this anvil is a dovetail groove 19 adapted to receive a block 20 of wood upon which the hammer will strike. The lower ends of the rods are connected by plates 21, 22, these plates having holes 23, 24 and 25, and so that the rods 8 and 9 may be connected to one plate through the holes 23 and 24, while the other rods 10 and 11 are connected to a similar plate through corresponding holes; or the rods 8 and 10 may be connected to the plates through the holes 23 and 25, and the rods 9 and 11 through corresponding holes of the second plate, the arrangement of these connecting plates at the bottom corresponding to the character of the piles to be driven.

When the hammer is being used as above described, it is desirable to file the groove 3 in the sides thereof, and for this purpose I provide filing blocks 26 which are adapted to be entered into the groove 3 and be secured therein by bolts 27, the thickness of the lower ends of the blocks corresponding in depth to the grooves 3, while the upper portions of the blocks are thinner so that the bolts will not project beyond the sides of the hammer. A hammer thus arranged on the guiding rods may be used for driving flat piles; or when required the blocks 27 may be removed and the hammer used in drivers of usual construction having Ways on which the hammers run.

I claim 1. The. combination with a hammer having vertical holes, rods extending through said holes on which the hammer may slide, a plate to which the upper ends of the rods are attached, and a pair of plates connecting pairs of rods at the bottom, substantially as described.

2. In a pile-driver, the combination with four vertical rods of a hammer having vertical holes adapting it to ride on said rods, an anvil also mounted on said rods, :1 plate to which the upper ends of the rods are attached and a pair of plates connecting pairs of rods at the lower ends, substantially as described.

3. In a pile driver, the combination with vertical rods of a hammer having vertical holes adapting it to ride on said rods, said hammer formed with a vertical groove on opposite sides and blocks adapted to be entered into said grooves and secured to said block, substantially as described.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

FRED BURGE. Witnesses FREDERIC C. Elmnn, CLARA L. WEED. 

